Welcome to Hydrostatic Plumbing & Air, your licensed master mechanical provider in San Antonio. When an aging, breakdown-prone air conditioner fails to keep your home cool during brutal Texas summers, our licensed environmental HVAC contractors deliver fast, code-compliant AC replacement in San Antonio to restore reliable indoor comfort and lower monthly energy costs.
Over 180+ verified homeowner reviews across Greater San Antonio.
Texas Master Plumber (RMP #43692) & HVAC Contractor (TACLA00139580E).
Honest, transparent service treating every customer's home like our own.
Fast, reliable response across Bexar County and surrounding cities.
Hydrostatic Plumbing & Air provides complete AC replacement in San Antonio for central air conditioners, heat pumps, and ductless mini-split systems. Utilizing precise Manual J heat load sizing, high-efficiency SEER2 equipment, digital line set evacuations, and custom duct airflow balancing, our licensed environmental HVAC contractors safely remove outdated cooling units and install modern systems engineered to handle 100°F+ Texas heatwaves. Contact our 24/7 team for transparent equipment replacement options.
Hydrostatic Plumbing & Air was founded in 2021 on a simple idea: a home service company should treat every homeowner the way it would want its own family treated. As a dedicated local HVAC and plumbing specialist, San Antonio families trust us to resolve total compressor failures, obsolete refrigerant systems, and inefficient cooling equipment with genuine care, clear communication, and lasting workmanship. We believe true service starts with doing the right thing, even when no one is watching. That means providing transparent system sizing advice, clear equipment choices, and fair recommendations tailored to your home’s actual cooling demand.
We don't believe in cutting corners or slapping improperly sized replacement units onto dirty, restricted ductwork. Every central air conditioner, heat pump, or mini-split system we replace is calibrated for optimal air volume, humidity removal, and energy efficiency according to strict Texas mechanical code standards.
Our licensed HVAC contractors take immense pride in precise mechanical execution. By verifying electrical breaker capacity, refrigerant charge levels, and ductwork static pressure on every replacement project, we guarantee maximum indoor air quality and reliable cooling performance.
Hydrostatic Plumbing & Air was founded in 2021 on a simple idea: a home service company should treat every homeowner the way it would want its own family treated. As a dedicated local contractor, San Antonio families trust our professional AC replacement in San Antonio to swap out obsolete Freon units, eliminate severe room hot spots, and reduce sky-high electric bills with genuine care, clear communication, and lasting workmanship.
Declining Cooling Output & Rising Power Bills: Older air conditioners lose mechanical efficiency over time, consuming excessive electricity while failing to keep indoor temperatures comfortable on hot days.
Frequent Component Breaches: When your current system requires multiple capacitor swaps, fan motor replacements, or costly electronic repairs each season, full equipment replacement offers superior long-term financial value.
Skyrocketing Refrigerant Recharge Costs: Older AC units using phased-out R-22 refrigerant face high recharge costs during pinhole coil leaks, making an upgrade to modern R-410A or R-454B SEER2 equipment the smarter choice.
Total System Mechanical Lockup: When an outdoor central compressor suffers a severe internal electrical short or mechanical lockup, replacing the complete indoor/outdoor system restores immediate, dependable indoor comfort.
Replacing an outdated air conditioning system is a major home investment, but it shouldn’t be stressful or filled with unexpected costs. We’ve streamlined our AC replacement in San Antonio process to provide accurate cooling load calculations, transparent flat-rate quotes, and master-level installation without disruption to your daily routine.
Reach out 24/7 by phone or submit our online form. We evaluate your square footage, insulation levels, and ductwork to calculate the precise cooling tonnage required for your home.
We present clear replacement system choices (single-stage, two-stage, or variable-speed inverter models) with flat-rate quotes covering equipment, labor, safety controls, and municipal permits. You approve every detail first.
Our licensed HVAC technicians safely recover old refrigerant, remove expired equipment, set the new indoor evaporator coil and outdoor condenser, connect electrical and line sets, and pull a deep system vacuum.
We charge the system, balance supply airflow across every room, verify temperature drops, calibrate your smart thermostat, sanitize the work area, and review system operation guidelines with you.
When you schedule professional AC replacement in San Antonio with Hydrostatic Plumbing & Air, you receive a full-scope, master-level installation package engineered for long-term comfort, strict code compliance, and peak energy savings. Every replacement includes:
| Included Service Component | Scope & Technical Execution | Customer Benefit |
|---|---|---|
| Manual J Heat Load & Airflow Calculation | Detailed square footage, window exposure, insulation, and duct static pressure evaluation. | Guarantees optimal system capacity—preventing short-cycling, high humidity, and wasted electricity. |
| Old Equipment EPA Recovery & Disposal | EPA-certified refrigerant recovery, unit teardown, haul-away, and recycling. | Protects the environment and eliminates heavy equipment disposal hassle for the homeowner. |
| High-SEER2 Outdoor Condenser & Indoor Coil | Setting level composite pad, mounting indoor air handler, and fitting aluminum coils. | Delivers maximum energy efficiency ratings, significantly reducing monthly summer electric bills. |
| New Insulated Copper Line Set & Deep Vacuum | Fitting liquid/suction lines; pulling system vacuum below 500 microns before charging. | Removes moisture and non-condensables to prevent acid formation and compressor wear. |
| Condensate Drain & Safety Float Switches | Trap installation, primary drain flushing, and secondary pan float switch wiring. | Automatically shuts off unit if drain line clogs, preventing ceiling water damage and attic flooding. |
| Smart Thermostat Wiring & System Calibration | Digital thermostat integration, airflow balancing across vents, and delta-T testing. | Provides intuitive climate control and ensures even cool air distribution throughout your home. |
Homeowners with Aging or Broken Cooling Systems: Replace inefficient 10+ year-old air conditioners before severe summer heat causes total breakdown.
Families Facing Excessive Electric Bills: Reduce monthly utility consumption with modern SEER2 high-efficiency central AC or heat pump equipment.
Home Remodelers & Space Additions: Upgrade whole-home cooling or install ductless mini-splits for additions, garages, or bonus rooms.
Property Buyers & Landlords: Replace non-functional cooling systems to meet lender financing standards or maintain comfortable rental conditions.
We hold active Texas Responsible Master Plumber (RMP #43692) and HVAC Contractor (TACLA00139580E) licenses, guaranteeing every installation and repair strictly complies with state safety codes.
We locate hidden slab leaks and sewer blockages with acoustic sensors, thermal imaging, and high-definition pipe cameras protecting your floors, yard, and budget from needless excavation.
We show you the camera footage and explain the exact issue before quoting. You receive transparent, fixed pricing with zero surprise charges or high-pressure upselling.
Founded in 2021, we treat every customer’s property like our own. Whether you face an urgent sewer backup or need seasonal AC service, our team is on call 24/7 across Bexar County.
Plumbing and HVAC problems are stressful enough without surprise fees or messy demolition. We’ve streamlined our service process to provide clear diagnostics, honest quotes, and master-level repairs without disruption.
Reach out 24/7 by phone or submit our online form. We pinpoint your service window, gather initial job details, and dispatch a fully equipped service vehicle to your location.
Our licensed technicians use non-invasive tools, thermal imaging, acoustic detection, or sewer cameras to uncover the exact source of failure before recommending repairs.
We walk you through our findings, show you the inspection footage, and present straightforward repair options with fixed pricing. You approve every detail before work starts.
We execute the repair using commercial-grade materials, test system pressure and flow, clean the jobsite completely, and review maintenance guidelines with you.
Explore verified, unedited project photos straight from the field; from non-destructive sewer repairs and gas lines to water heaters and clean fixture installations.
See what local property owners across Bexar County have to say about our rapid cooling equipment replacements, fair flat-rate pricing, and dependable 24/7 service.
EXCELLENT
Based on 192 reviews
Posted on Google![]()
EloyTrustindex verifies that the original source of the review is Google.
Great work , honest and great pricesPosted on Google![]()
Kayode AwobimpeTrustindex verifies that the original source of the review is Google.
Amazing quality service with friendly pricePosted on Google![]()
Mario GarciaTrustindex verifies that the original source of the review is Google.
Alfredo went above and beyond to help us and we would recommend him %100Posted on Google![]()
Monica PenalverTrustindex verifies that the original source of the review is Google.
Thanks for the awesome workPosted on Google![]()
Andy SparkmanTrustindex verifies that the original source of the review is Google.
Alfredo and Hydrostatic are the best. I really appreciate the partnership we have and the quality of work they provide and his character. I would highly recommend Alfredo for any of your plumbing needs!Posted on Google![]()
Nicole PauleyTrustindex verifies that the original source of the review is Google.
Alejandro was very efficient when giving me a quote to connect 4 sinks to their pipes.Posted on Google![]()
Todd D.Trustindex verifies that the original source of the review is Google.
I had a hydrostatic plumbing test performed on my house by the Master Plumber, Alfredo Vallejo. He did an excellent job! To properly pressurize and test the sewer lines, he had to remove a toilet. After allowing sufficient time for the test, he promptly shared the results—much to my relief, everything passed! He also inspected the inside of the sewer lines with a camera and showed me the video footage. He noticed that the wax ring beneath the toilet needed to be replaced and took care of it without hesitation, which was truly above and beyond. He was professional, thorough, trustworthy, and highly recommended.Posted on Google![]()
Reynaldo GonzalesTrustindex verifies that the original source of the review is Google.
Stop paying so much money for the NAME ! of the company. I found this company on facebook they Came to my home very professional very clean did a wonderful job could not be happier.. please call them for any repairs needed.Verified by TrustindexTrustindex verified that these reviews were published on Hydrostatic Plumbing & Air's Google Business Profile. Learn more
Providing licensed plumbing, slab leak detection, and mainline cleanouts for homeowners across Cibolo and the Northeast Corridor.
Fast-response plumbing, hydrostatic testing, and seasonal AC repairs for residential neighborhoods and local businesses in Schertz.
Expert sewer clog solutions, whole-home water softening, and emergency diagnostic plumbing across Northwest Bexar County.
Dedicated master plumbing, sewer camera line inspections, and dependable heating and cooling services throughout Converse.
From high-precision sub-slab diagnostics to main sewer pipe restoration, our licensed team delivers lasting repairs built on Texas state code standards. Browse our core plumbing services to find your specific solution
Stay comfortable year-round with professional air conditioning and heating solutions governed by Licensed Environmental Air Conditioning Contractor standards
Replacing an outdated air conditioning system requires licensed environmental HVAC expertise, proper refrigerant handling, and precise electrical load balancing. While unpermitted installers or budget contractors often slap improperly sized equipment onto damaged ductwork, our licensed contractors deliver engineered, long-lasting comfort.
| Evaluation Feature | Licensed Master HVAC Replacement | Budget Subcontracted Swap | Unlicensed Handyman Install |
|---|---|---|---|
| System Sizing Accuracy | Manual J heat load calculation based on home square footage & insulation. | Rough rule-of-thumb estimates without heat gain math. | Replaces existing tonnage without verifying ductwork airflow limits. |
| Line Set Evacuation Standard | Deep vacuum hold test below 500 microns to eliminate air & moisture. | Quick line purge that leaves trace moisture inside coils. | No vacuum pump used; drastically reduces compressor life. |
| Safety Overflow Controls | Dual secondary drain pan safety float switches installed per code. | Basic single switch; charges extra fees for full overflow protection. | Omits overflow safety float switches, risking ceiling water damage. |
| City Permits & Inspection Support | 100% managed; files municipal mechanical permits and schedules inspection. | Inconsistent permit handling; leaves inspection tasks to homeowner. | Unpermitted installation; risks city fines and property sale flags. |
| Warranty & Workmanship Support | 10-year manufacturer equipment warranty plus local master labor guarantee. | Standard warranty, but customer service call routing can be slow. | Improper installation risks voiding factory equipment warranties. |
Clear, straightforward answers to common questions about air conditioning replacement signs, SEER2 energy standards, system sizing, and project timelines across Greater San Antonio.
If your air conditioning system is over 10 to 12 years old, requires frequent costly repairs, relies on phased-out R-22 Freon, or fails to keep your home cool despite running constantly, full replacement is the smarter financial choice. Modern high-efficiency SEER2 equipment dramatically lowers monthly electricity bills while providing superior dehumidification.
In the Southern region of the United States (including Texas), building energy regulations require all newly installed central air conditioners to meet a minimum rating of 14.3 SEER2. Upgrading to 16 to 20+ SEER2 two-stage or variable-speed systems offers even greater electrical savings and superior humidity control during long Texas summers.
A standard like-for-like central AC replacement (outdoor condenser and indoor air handler/coil) typically takes 6 to 8 hours to complete. If extensive ductwork modifications, electrical panel upgrades, or ductless mini-split line runs are required, installation may take 1 to 2 days.
A central AC unit cools your home during summer, while relying on a separate furnace or electric heat strip for winter warmth. A heat pump functions identically to an AC during summer but features a reversing valve that allows it to heat your home during winter by extracting ambient heat from outdoor air, providing a highly energy-efficient all-in-one cooling and heating solution.
Yes. The City of San Antonio requires mechanical permits for all central HVAC replacements. This ensures electrical wiring, refrigerant handling, and duct static pressure comply with municipal safety and energy codes. Hydrostatic Plumbing & Air handles all permit applications and inspection arrangements for you.
Didn’t find the answer to your questions? Contact Our Team
Don’t let an outdated or broken air conditioner leave your family sweltering in the summer heat. Trust the licensed HVAC contractors at Hydrostatic Plumbing & Air for reliable, code-compliant AC replacement in San Antonio. Contact our 24/7 dispatch team today at (210) 740-2790 or submit an online request for immediate service!